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SCSI > Information Units
The following information is about Information Units.
Information Units Defined
Information Units is one of the five optional features of Ultra3 SCSI as defined in the SPI-3 document. It is a form of SCSI packetization or encapsulation that is designed to reduce overhead and speed data transfers. The SCSI command and data phases are reduced from a seven to a three phase process and then further combines the status phase and message phase that occur after a data transfer. Also, the timing on the command phase, status phase and message phase is changed from asynchronous to synchronous which results in another reduction in overhead.
An "SPI information unit" is a data structure that packetizes data, status, command, task attributes and CRC into various formats. An "information unit transfer" is a transfer of data, status, commands, task attributes, task management, and CRC using only SPI information transfers. Ultra160m (U160/m) SCSI does not include the Information Units option.
This definition is in context to SCSI. See more contextual defintions for Information Units.
Are you looking for additional SCSI > Information Units news? Try our new "Information Units News Focus" area.
Off-site Information Units Links, User Submitted
The following links have been collected through user bookmark submission in the Information Units category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
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- An On-Line Biology Book: everything biology, links to information
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If you would like to find additional social bookmark based links on the topic of we recommend the Open Tag Directory > Information Units. If you would like to find related tags we recommend Tag Patterns > Information Units
Off-site Information Units Research Links
If you still need additional information on Information Units then we suggest the following off-site resources. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
- A9 > Information Units
- Alexa > Information Units
- DMOZ > Information Units
- Feeds Filtered > Information Units
- Google > Information Units
- News Meme > Information Units
- Nuah: News > Information Units
- The Feed Directory > Information Units
- OBP > Information Units
- Open Tag Directory > Information Units
- Podzy > Information Units
- Yahoo > Information Units
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